algebra

posted by .

Susan is filling two ponds in her back yard. She has to dig the hole, put the liner in, and fill the pond. The first pond holds 75 gallons of water and is filling at a rate of 7 gallons of water per hour. The second holds 115 gallons of water and is filling at a rate of 3 gallons of water per hour. Write an equation for each tank that represents the total amount of water in gallons in the tank, y, in terms of the number of hours, x, that the tanks are draining

  • algebra -

    I suspect you meant that they are draining. So, the two equations would be

    y = 75-7x
    and
    y = 115-3x

    for suitable domains of x.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    francois is stokcing a new fish pond on his farm. The pond is filling slowly and the volume of water in it can support a certain number of fish,(variable-F). F=42m+250, where m is the number of months the pond has been filling. the …
  2. Algebra- I get 1 out of two parts

    Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 25 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let …
  3. Algebra

    Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 25 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let …
  4. Mathematics Blue

    A person is trying to fill her new swimming pool for the first time. Water is flowing into the pool at a constant rate of 30 liters/min. Unfortunately there is a hole and a crack in the pool from which water is leaking. Water is leaking …
  5. algebra

    the number of gallons of water,y,after x hours maybe modeled by the linear equation y=800-50x. Which of the following statements is true, a.it is filling at a rate of 800 gallons per hour/b.it is filling at a rate of 50 gallons per …
  6. algebra

    The number of gallons of water, y , in a tank after x hours may be modeled by the linear equation y = 800 - 50x . Which of the following statements about the tank is true?
  7. algebra

    The number of gallons of water, y , in a tank after x hours may be modeled by the linear equation y = 800 - 50x . Which of the following statements about the tank is true?
  8. Environmental Engineering

    The two ponds in the figure below can be modeled as completely-stirred tank reactors (CSTRs) in series. The first-order decay rates for each pond are different but the inflow and outflow rates and volumes for the two ponds are the …
  9. Biology

    Which is one way that a freshwater wetland differs from a lake or pond?
  10. capacity problems

    80 buckets of water fill a pond each bucket holds 2litres how much water does the pond hold

More Similar Questions